2.2.2

Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA

• UATUAGA

• ACGACTG

• CAUCAGU

• CATCAGT

What is the term for a three-nucleotide sequence that codes for an amino acid?

• base

• codon

• amine

• serine

Tags

NGSS.HS-LS1-1

Which code does NOT cause transcription to stop?

• UGA

• UAA

• UAG

• UGG

The main function of tRNA is to...

• carry a message that, when translated, forms proteins

• form a portion of ribosomes

• string together complementary RNA and DNA strands

• bring amino acids from the cytoplasm to the ribosomes

How many amino acids are coded for by this sequence of nucleotides:

ATG GGA ACT CCA

• 4

• 2

• 6

• 3

When an extra base is inserted into the DNA sequence of a gene, the protein doesn't work. Which explains why?

• the base increases rate of translation

• the base causes DNA to be transcribed in opposite direction

• the inserted base causes the codons in the sequence to be incorrect for the desired protein

• the base signals enzymes to translate DNA rather than RNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

In RNA, Uracil pairs with ______. 

• cytosine

• adenine

• guanine

• thymine

Which amino acid is made from the RNA codon GUA?

• Phenylalanine

• Leucine

• Serine

• Valine

What amino acid is represented by the codon AUG?

• Aspartic Acid

• Histidine

• Glutamine

• Methionine

What would happen if we did not have start codons?

• Polypeptide chains would continue to grow

• Amino acids would bind to tRNA

• Protein synthesis wouldn't occur

• mRNA would form a double strand